Led Zeppelin gave us one great night in 2007 that's turned into the new 'Celebration Day' concert film, but Jimmy Page reveals that he always thought more shows would follow. The only problem was that Robert Plant was busy with his own project at the time.

Page told Rolling Stone, "Some of us thought we would be continuing, that there were going to be more concerts in the not-too-distant future, because there was a lot of work being put into the show." However, Plant's schedule got in the way. "He was busy," says Page. "He was doing his Alison Krauss project (the 2007 album 'Raising Sand'). I wasn't fully aware it was going to be launched at the same time. So what do you do in a situation like that? I'd been working with the other two guys for the percentage of the rehearsals at the O2. We were connecting well. The weakness was that none of us sang."

What followed was an attempt by Page, John Paul Jones and Jason Bonham to find a vocalist that they could continue with as the chemistry was undeniably there. However, the group never found their frontman. Page says of the continued experience minus Plant, "We didn't do any professional recording. We just had a little digital recorder. I thought it was good. I wasn't going to [go] away from it. But the weakness came up again. It was, 'We gotta have a singer.'"

Current Alter Bridge and Slash frontman Myles Kennedy was among those who tested out his pipes with the band, and Aerosmith's Steven Tyler reportedly flew to England as well. But in the end, it just didn't pan out. Page says, "The timing wasn't the best. We had put so much toward the O2. And the three of us were catching up with stuff. It was very good, seriously promising, but there was this other thing going on. [Pause] And that's it."